O-/◯ᴥᗱᗴᗝИNᗱᗴᙁ⚭ⵙ⚭ᙁᗱᗴИNᗝᗱᗴᴥ◯/2.90/SCRIPTS/ADDONS/TISSUE-MASTER/DUAL_MESH.PY
2020-11-20 17:33:46 +02:00

346 lines
14 KiB
Python

# ##### BEGIN GPL LICENSE BLOCK #####
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####
# --------------------------------- DUAL MESH -------------------------------- #
# -------------------------------- version 0.3 ------------------------------- #
# #
# Convert a generic mesh to its dual. With open meshes it can get some wired #
# effect on the borders. #
# #
# (c) Alessandro Zomparelli #
# (2017) #
# #
# http://www.co-de-it.com/ #
# #
# ############################################################################ #
import bpy
from bpy.types import Operator
from bpy.props import (
BoolProperty,
EnumProperty,
)
import bmesh
from .utils import *
class dual_mesh_tessellated(Operator):
bl_idname = "object.dual_mesh_tessellated"
bl_label = "Dual Mesh"
bl_description = ("Generate a polygonal mesh using Tessellate. (Non-destructive)")
bl_options = {'REGISTER', 'UNDO'}
apply_modifiers : BoolProperty(
name="Apply Modifiers",
default=True,
description="Apply object's modifiers"
)
source_faces : EnumProperty(
items=[
('QUAD', 'Quad Faces', ''),
('TRI', 'Triangles', '')],
name="Source Faces",
description="Source polygons",
default="QUAD",
options={'LIBRARY_EDITABLE'}
)
def execute(self, context):
auto_layer_collection()
ob0 = context.object
name1 = "DualMesh_{}_Component".format(self.source_faces)
# Generate component
if self.source_faces == 'QUAD':
verts = [(0.0, 0.0, 0.0), (0.0, 0.5, 0.0),
(0.0, 1.0, 0.0), (0.5, 1.0, 0.0),
(1.0, 1.0, 0.0), (1.0, 0.5, 0.0),
(1.0, 0.0, 0.0), (0.5, 0.0, 0.0),
(1/3, 1/3, 0.0), (2/3, 2/3, 0.0)]
edges = [(0,1), (1,2), (2,3), (3,4), (4,5), (5,6), (6,7),
(7,0), (1,8), (8,7), (3,9), (9,5), (8,9)]
faces = [(7,8,1,0), (8,9,3,2,1), (9,5,4,3), (9,8,7,6,5)]
else:
verts = [(0.0,0.0,0.0), (0.5,0.0,0.0), (1.0,0.0,0.0), (0.0,1.0,0.0), (0.5,1.0,0.0), (1.0,1.0,0.0)]
edges = [(0,1), (1,2), (2,5), (5,4), (4,3), (3,0), (1,4)]
faces = [(0,1,4,3), (1,2,5,4)]
# check pre-existing component
try:
_verts = [0]*len(verts)*3
__verts = [c for co in verts for c in co]
ob1 = bpy.data.objects[name1]
ob1.data.vertices.foreach_get("co",_verts)
for a, b in zip(_verts, __verts):
if abs(a-b) > 0.0001:
raise ValueError
except:
me = bpy.data.meshes.new("Dual-Mesh") # add a new mesh
me.from_pydata(verts, edges, faces)
me.update(calc_edges=True, calc_edges_loose=True)
if self.source_faces == 'QUAD': n_seams = 8
else: n_seams = 6
for i in range(n_seams): me.edges[i].use_seam = True
ob1 = bpy.data.objects.new(name1, me)
context.collection.objects.link(ob1)
# fix visualization issue
context.view_layer.objects.active = ob1
ob1.select_set(True)
bpy.ops.object.editmode_toggle()
bpy.ops.object.editmode_toggle()
ob1.select_set(False)
# hide component
ob1.hide_select = True
ob1.hide_render = True
ob1.hide_viewport = True
ob = convert_object_to_mesh(ob0,False,False)
ob.name = 'DualMesh'
#ob = bpy.data.objects.new("DualMesh", convert_object_to_mesh(ob0,False,False))
#context.collection.objects.link(ob)
#context.view_layer.objects.active = ob
#ob.select_set(True)
ob.tissue_tessellate.component = ob1
ob.tissue_tessellate.generator = ob0
ob.tissue_tessellate.gen_modifiers = self.apply_modifiers
ob.tissue_tessellate.merge = True
ob.tissue_tessellate.bool_dissolve_seams = True
if self.source_faces == 'TRI': ob.tissue_tessellate.fill_mode = 'FAN'
bpy.ops.object.update_tessellate()
ob.location = ob0.location
ob.matrix_world = ob0.matrix_world
return {'FINISHED'}
def invoke(self, context, event):
return context.window_manager.invoke_props_dialog(self)
class dual_mesh(Operator):
bl_idname = "object.dual_mesh"
bl_label = "Convert to Dual Mesh"
bl_description = ("Convert a generic mesh into a polygonal mesh. (Destructive)")
bl_options = {'REGISTER', 'UNDO'}
quad_method : EnumProperty(
items=[('BEAUTY', 'Beauty',
'Split the quads in nice triangles, slower method'),
('FIXED', 'Fixed',
'Split the quads on the 1st and 3rd vertices'),
('FIXED_ALTERNATE', 'Fixed Alternate',
'Split the quads on the 2nd and 4th vertices'),
('SHORTEST_DIAGONAL', 'Shortest Diagonal',
'Split the quads based on the distance between the vertices')
],
name="Quad Method",
description="Method for splitting the quads into triangles",
default="FIXED",
options={'LIBRARY_EDITABLE'}
)
polygon_method : EnumProperty(
items=[
('BEAUTY', 'Beauty', 'Arrange the new triangles evenly'),
('CLIP', 'Clip',
'Split the polygons with an ear clipping algorithm')],
name="Polygon Method",
description="Method for splitting the polygons into triangles",
default="BEAUTY",
options={'LIBRARY_EDITABLE'}
)
preserve_borders : BoolProperty(
name="Preserve Borders",
default=True,
description="Preserve original borders"
)
apply_modifiers : BoolProperty(
name="Apply Modifiers",
default=True,
description="Apply object's modifiers"
)
def execute(self, context):
mode = context.mode
if mode == 'EDIT_MESH':
mode = 'EDIT'
act = context.active_object
if mode != 'OBJECT':
sel = [act]
bpy.ops.object.mode_set(mode='OBJECT')
else:
sel = context.selected_objects
doneMeshes = []
for ob0 in sel:
if ob0.type != 'MESH':
continue
if ob0.data.name in doneMeshes:
continue
ob = ob0
mesh_name = ob0.data.name
# store linked objects
clones = []
n_users = ob0.data.users
count = 0
for o in bpy.data.objects:
if o.type != 'MESH':
continue
if o.data.name == mesh_name:
count += 1
clones.append(o)
if count == n_users:
break
if self.apply_modifiers:
bpy.ops.object.convert(target='MESH')
ob.data = ob.data.copy()
bpy.ops.object.select_all(action='DESELECT')
ob.select_set(True)
context.view_layer.objects.active = ob0
bpy.ops.object.mode_set(mode='EDIT')
# prevent borders erosion
bpy.ops.mesh.select_mode(
use_extend=False, use_expand=False, type='EDGE'
)
bpy.ops.mesh.select_non_manifold(
extend=False, use_wire=False, use_boundary=True,
use_multi_face=False, use_non_contiguous=False,
use_verts=False
)
bpy.ops.mesh.extrude_region_move(
MESH_OT_extrude_region={"mirror": False},
TRANSFORM_OT_translate={"value": (0, 0, 0)}
)
bpy.ops.mesh.select_mode(
use_extend=False, use_expand=False, type='VERT',
action='TOGGLE'
)
bpy.ops.mesh.select_all(action='SELECT')
bpy.ops.mesh.quads_convert_to_tris(
quad_method=self.quad_method, ngon_method=self.polygon_method
)
bpy.ops.mesh.select_all(action='DESELECT')
bpy.ops.object.mode_set(mode='OBJECT')
bpy.ops.object.modifier_add(type='SUBSURF')
ob.modifiers[-1].name = "dual_mesh_subsurf"
while True:
bpy.ops.object.modifier_move_up(modifier="dual_mesh_subsurf")
if ob.modifiers[0].name == "dual_mesh_subsurf":
break
bpy.ops.object.modifier_apply(
apply_as='DATA', modifier='dual_mesh_subsurf'
)
bpy.ops.object.mode_set(mode='EDIT')
bpy.ops.mesh.select_all(action='DESELECT')
verts = ob.data.vertices
bpy.ops.object.mode_set(mode='OBJECT')
verts[-1].select = True
bpy.ops.object.mode_set(mode='EDIT')
bpy.ops.mesh.select_more(use_face_step=False)
bpy.ops.mesh.select_similar(
type='EDGE', compare='EQUAL', threshold=0.01)
bpy.ops.mesh.select_all(action='INVERT')
bpy.ops.mesh.dissolve_verts()
bpy.ops.mesh.select_all(action='DESELECT')
bpy.ops.mesh.select_non_manifold(
extend=False, use_wire=False, use_boundary=True,
use_multi_face=False, use_non_contiguous=False, use_verts=False)
bpy.ops.mesh.select_more()
# find boundaries
bpy.ops.object.mode_set(mode='OBJECT')
bound_v = [v.index for v in ob.data.vertices if v.select]
bound_e = [e.index for e in ob.data.edges if e.select]
bound_p = [p.index for p in ob.data.polygons if p.select]
bpy.ops.object.mode_set(mode='EDIT')
# select quad faces
context.tool_settings.mesh_select_mode = (False, False, True)
bpy.ops.mesh.select_face_by_sides(number=4, extend=False)
# deselect boundaries
bpy.ops.object.mode_set(mode='OBJECT')
for i in bound_v:
context.active_object.data.vertices[i].select = False
for i in bound_e:
context.active_object.data.edges[i].select = False
for i in bound_p:
context.active_object.data.polygons[i].select = False
bpy.ops.object.mode_set(mode='EDIT')
context.tool_settings.mesh_select_mode = (False, False, True)
bpy.ops.mesh.edge_face_add()
context.tool_settings.mesh_select_mode = (True, False, False)
bpy.ops.mesh.select_all(action='DESELECT')
# delete boundaries
bpy.ops.mesh.select_non_manifold(
extend=False, use_wire=True, use_boundary=True,
use_multi_face=False, use_non_contiguous=False, use_verts=True
)
bpy.ops.mesh.delete(type='VERT')
# remove middle vertices
bm = bmesh.from_edit_mesh(ob.data)
for v in bm.verts:
if len(v.link_edges) == 2 and len(v.link_faces) < 3:
v.select = True
# dissolve
bpy.ops.mesh.dissolve_verts()
bpy.ops.mesh.select_all(action='DESELECT')
# remove border faces
if not self.preserve_borders:
bpy.ops.mesh.select_non_manifold(
extend=False, use_wire=False, use_boundary=True,
use_multi_face=False, use_non_contiguous=False, use_verts=False
)
bpy.ops.mesh.select_more()
bpy.ops.mesh.delete(type='FACE')
# clean wires
bpy.ops.mesh.select_non_manifold(
extend=False, use_wire=True, use_boundary=False,
use_multi_face=False, use_non_contiguous=False, use_verts=False
)
bpy.ops.mesh.delete(type='EDGE')
bpy.ops.object.mode_set(mode='OBJECT')
ob0.data.name = mesh_name
doneMeshes.append(mesh_name)
for o in clones:
o.data = ob.data
for o in sel:
o.select_set(True)
context.view_layer.objects.active = act
bpy.ops.object.mode_set(mode=mode)
return {'FINISHED'}